Cab roof



FIG. 1 is a left front perspective view of a cab roof embodying my design.

FIG. 2 is a left front prespective view thereof.

FIG. 3 is a front elevational view thereof.

FIG. 4 is a right side elevational view, the left side elevational view being the mirror image thereof.

FIG. 5 is a right rear prespective view thereof.

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a top plan view thereof.

The broken line showing the cab in FIG. 1 forms no part of the claimed design. 

The ornamental design for a cab roof, as shown and described. 